<!DOCTYPE html>
<head>
    <!-- 标题标签 -->
    <title>title</title>

    <style>
        div {
            color: green;
            text-align: center;
            font-size: 30px;
        }
    </style>
</head>

<body>
    <div>
        道可道非常道,名可名非常名
    </div>
</body>

</html>